GMC ENVOY IDLES UP AND DOWN WHEN AIR IS ON

  • Tiny
  • adrien
  • 2005 GMC Envoy
  • 100,000 miles

My GMC Envoy idles up and down, but when I run my air its much worse, to the point that it will shut off and my air compressor clicks on and off. What is that?

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Friday, June 29th, 2012 AT 3:47 PM

1 Reply

  • Tiny
  • KHLow2008
  • Expert
  • 41,997 posts

The idle control system is acting up. Get the throttle body and IAC cleaned and retest.

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Friday, June 29th, 2012 AT 3:52 PM

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